Climate Science: Separating Mistakes From Malfeasance

An important problem in climatology involves determining how many points are required to establish a pattern or a trend. It parallels the societal challenge, how many mistakes before a pattern or trend is identified? The societal question applies to climate science, but the line appears unclear. How many scientific mistakes separate incompetence from malfeasance? After watching the corruption of climate science for over 30 years, I believe we crossed the line with creation of the Intergovernmental Panel on Climate Change (IPCC). Its procedures were established to prove the anthropogenic global warming (AGW) hypothesis. This resulted in the malfeasance of eliminating or evading scientific checks and balances. The question is why is the malfeasance still not fully exposed? Why can people who were exposed and admitted their errors, continue to have credibility, at least in their own minds? Why is there no accountability?